Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 135,384 pages of information and 216,989 images on early companies, their products and the people who designed and built them.
of Spanish Steel Works, Pinfold Lane, Attercliffe, Sheffield
1887 Advertising Moerath’s Patent Furnace Bars 
1891 Advertisement: 'SPANISH STEEL WORKS, PINFOLD LANE, ATTERCLIFFE. Re WILLANS, ARNOLD, AND COLLEY (LIMITED). LIQUIDATION. MR. GEO. TALBOT is favoured with instructions from James Wolstenholme, Esq. (the Liquidator) to SELL by AUCTION, above, the whole of the STOCK, TOOLS, OFFICE FURNITURE, &c., .....'
It appears that the site of the Spanish Steel Works became home to the Theatre Royal (subsequently becoming The Royal Picture House), and Pinfold Lane is now named Staniforth Road showing.